white, 18% thinner, 20% lighter, bigger screen, 4 instead of 3 1/2 so you can display for app icons larger views of e-mails and websites, 4g, high speed connectivity sprint and verizon will carry it, new chip, loading photos and music much faster. >> hardware and software engineering that has gone into this product is the most challenging our team has ever taken on. what they've accomplished is sim blazing. -- simply amazing. >> reporter: good news for gamers, two times faster graphics and console quality graphics, better battery, 8 mega pixel camera panorama photos, three microphones for better sound, maps in 3-d not google, apple.